Jami` at-Tirmidhi 526
جامع الترمذي#526Sahihحَدَّثَنَا أَبُو سَعِيدٍ الأَشَجُّ، حَدَّثَنَا عَبْدَةُ بْنُ سُلَيْمَانَ، وَأَبُو خَالِدٍ الأَحْمَرُ عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِذَا نَعَسَ أَحَدُكُمْ يَوْمَ الْجُمُعَةِ فَلْيَتَحَوَّلْ مِنْ مَجْلِسِهِ ذَلِكَ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Ibn Umar narrated that :the Prophet said: "When one of you becomes sleepy during the Friday prayer, then let him move from where he is sitting
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 4:39